Table 1. Radiographic characteristics of individual lesions.

Lesion	*Volume—Initial	Volume—2 Mo	% Change
Left Superior—Apical, Posterior (Red)	5.7	11.5	+50
Left Superior—Apical, Anterior (Blue)	4.4	3.1	−42
Left Inferior—Subcarinal (Gold)	32.3	40.6	+20
Right Upper—Apical, Posterior (Tan)	4.0	6.3	+58
Right Middle—Anterior (Purple)	18.4	11.8	−36
Right Lower—Posterior (Light Blue)	148	236	+60
Air	**Volume—Initial	Volume—2 Mo	% Change
Left Superior—Apical, Posterior (Red)	1.0	0.1	−90
Left Inferior—Subcarinal (Gold)	3.5	0.7	−80
Right Lower—Posterior (Light Blue)	13.5	0.6	−96

^*Volume refers to the amount of radiodense (−100 to + 200 Hounsfeld Units) tissue in the indicated region in mL. **Air Volume refers to the amount of radiolucent space interior to a cavity (−1050 to −900 Hounsfeld Units).